Effectiveness of enzymes and inoculants on biological pretreatment of different high dry matter lignocellulosic materials

Koç, Fisun; Eser, S.; Okuyucu, Berrin; Esen, Selim

doi:10.1016/j.biteb.2021.100836

Cited by 5 publications

(3 citation statements)

References 34 publications

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“…As has already been noted, the main purpose of using LAB strains alone or in combination with fibrolytic enzymes, sugar sources, and/or organic acid is to guarantee silage fermentation [ 31 , 32 ]. A closer inspection of Table 2 shows that all TMRs had higher WSC (>50 g/kg DM) content at initial air exposure, which can allocate more substrate for LA production [ 33 ].…”

Section: Discussionmentioning

confidence: 99%

Infrared Thermography Assessment of Aerobic Stability of a Total Mixed Ration: An Innovative Approach to Evaluating Dairy Cow Feed

Türkgeldi,

Koç,

Lackner

et al. 2023

Animals

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A major objective of this study is to identify factors influencing the quality of high-moisture total mixed rations (TMRs) for livestock feed and explore possible manipulations that can enhance their fermentation characteristics and stability in order to address the problem of poor aerobic stability. Therefore, the current study utilized infrared thermography (IRT) to assess the aerobic stability of water-added TMRs in the feed bunker. By manipulating the moisture content of freshly prepared TMRs at four different levels through water addition and subjecting it to storage at two consistent temperatures, significant correlations between IRT values (center temperature (CT) and maximum temperature difference (MTD)) and key parameters such as lactic acid bacteria, water-soluble carbohydrates, and TMR pH were established. The first and second principal components together accounted for 44.3% of the variation, with the first component’s load influenced by IRT parameters, fermentation characteristics, and air exposure times, while the second component’s load was influenced by dry matter content and lactic acid concentration. The results of these studies indicate the possibility that feeding methods can be optimized by identifying portions with higher CT or MTD data using IRT measurements just before feeding dairy cows in the field. As a result, increasing the use of IRT in feed management and preservation processes is projected to have a positive impact on animal productivity in the future.

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Section: Discussionmentioning

confidence: 99%

Infrared Thermography Assessment of Aerobic Stability of a Total Mixed Ration: An Innovative Approach to Evaluating Dairy Cow Feed

Türkgeldi,

Koç,

Lackner

et al. 2023

Animals

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“…20 g of silage samples were transferred to 180 mL of sterile saline solution; For LAB and yeast counts, serial dilutions were made. LAB counts were performed using MRS agar (De Man, Rogosa, and Sharpe agar; Merck KGaA, Darmstadt, Germany) in a 30 • C anaerobic jar for 72 h, while yeasts were counted on PDA agar (Potato Dextrose Agar; Merck KGaA, Darmstadt, Germany) incubated at 25 • C for 5 d [30].…”

Section: Chemical and Microbiological Analysesmentioning

confidence: 99%

Lentilactobacillus buchneri Preactivation Affects the Mitigation of Methane Emission in Corn Silage Treated with or without Urea

et al. 2022

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The aim of this study was to investigate the effect of different forms of Lentilactobacillus buchneri on the in vitro methane production, fermentation characteristics, nutritional quality, and aerobic stability of corn silage treated with or without urea. The following treatments were applied prior to ensiling: (1) no urea treatment and LB; (2) no urea treatment+freeze dried LB; (3) no urea treatment+preactivated LB; (4) with urea treatment+no LB; (5) with urea treatment+freeze dried LB; (6) with urea treatment+preactivated. LB was applied at a rate of 3 × 108 cfu/kg on a fresh basis, while urea was applied at a rate of 1% on the basis of dry matter. Data measured at different time points were analyzed according to a completely randomized design, with a 2 × 3 × 5 factorial arrangement of treatments, while the others were analyzed with a 2 × 3 factorial arrangement. Preactivated LB was more effective than freeze-dried LB in reducing silage pH, ammonia nitrogen, cell-wall components, yeast count, and carbon dioxide production, as well as increasing lactic acid and residual water-soluble carbohydrate and aerobic stability (p < 0.0001). A significant reduction in the methane ratio was observed after 24 h and 48 h incubation with preactivated forms of LB (p < 0.001). The results indicated that preactivated LB combined with urea improved fermentation characteristics, nutritional quality, and aerobic stability and reduced the methane ratio of corn silages.

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“…Poor animal nutrition is one of the main factors restricting livestock productivity [8]. Te poor quality, nutrient content, and digestibility of crop residues can be improved and degraded using various methods such as grinding, stream processing, chemical methods (such as alkaline treatments and other chemicals, such as sodium hydroxide, sulfur dioxide, urea, or chlorine), and biological methods (such as fungal treatment, inoculants, enzymes, or alternative additives) have been utilized separately or in combination [12][13][14]. However, improving the nutritional content of crop residues is not very common in Ethiopia due to lack of knowledge, lack of funding, and availability of chemicals for treatment [5,15].…”

Section: Introductionmentioning

confidence: 99%

Nutritional Content Analysis of Crop Residues in Three Agroecologies in East Gojjam Zone

Desta

2023

The Scientific World Journal

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Livestock is important and plentiful in Ethiopia, but its potential is not being used to its full extent due to limited supply and inconsistent feed supply. This has a negative impact on livestock productivity in the tropics, where crop residues are used as livestock feed. The analysis of the nutritional content of feed and the measurement of feed production are crucial for maintaining the optimal balance of annual livestock feed and improving livestock production. However, no research has been conducted on the nutritional composition of the crop residues in the East Gojjam zone. Therefore, this study was conducted to analyze the nutritional content of crop residues in the three agroecologies in Ethiopia’s East Gojjam zone. Ash, dry matter (DM), organic matter (OM), neutral detergent fiber (NDF), acid detergent fiber (ADF), and acid detergent lignin (ADL) were analyzed in the feed samples. According to the findings, the overall mean content of DM, ash, OM, CP, NDF, ADF, and ADL was 92.3, 5.2, 87.1, 4.1, 71, 56.6, and 9.6%, respectively. The faba bean has the highest CP (6.2%), followed by barley straws (5.5%), vetch haulms (5.5%), Eragrostis tef (3.7%), wheat straws (3.2%), and maize stover (2.9%). In general, all crop residues contain CP content below the critical CP level required even for livestock maintenance. The highest NDF was found in barley straw (75.1%), which was followed by wheat straw (72.0%), Eragrostis tef straw (70.2%), vetch haulms (69.3%), maize stover (67.4%), and faba bean haulms (67.2%). All types of crop residues were classified as low-quality feed because they contained more than 65% NDF, which could affect feed intake and livestock production. Therefore, crop residues must be improved using mechanical, biological, and chemical methods in order to increase livestock production in the study areas by increasing feed consumption.

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Effectiveness of enzymes and inoculants on biological pretreatment of different high dry matter lignocellulosic materials

Cited by 5 publications

References 34 publications

Infrared Thermography Assessment of Aerobic Stability of a Total Mixed Ration: An Innovative Approach to Evaluating Dairy Cow Feed

Infrared Thermography Assessment of Aerobic Stability of a Total Mixed Ration: An Innovative Approach to Evaluating Dairy Cow Feed

Lentilactobacillus buchneri Preactivation Affects the Mitigation of Methane Emission in Corn Silage Treated with or without Urea

Nutritional Content Analysis of Crop Residues in Three Agroecologies in East Gojjam Zone

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